The ATLAS experiment [1]} at the LHC is used for studies of a wide range of physics topics.
These include processes in which the interacting protons stay intact and are scattered at very small angles.
ATLAS is equipped with two detector systems allowing measurements of such protons: ALFA [2]} (see also M. Schmidt's contribution in these proceedings) and AFP [3]}.
Both systems are placed more than 200 m away from the interaction point and they use the Roman pot technology to detect scattered protons just a few millimetres from the LHC beam.
